719-32-4Relevant articles and documents
Synthesis and characterization of novel organosoluble polychloro substituted aromatic poly(ether ketone)s
Sheng, Shou-Ri,Mao, Xue-Chun,Pei, Xue-Liang,Liu, Xiao-Ling,Song, Cai-Sheng
, p. 189 - 195 (2008)
A novel monomer of tetrachloroterephthaloyl chloride (TCTPC) was prepared by the chlorination of terephthaloyl chloride catalyzed by ferric chloride at 175-180°C for 10 h, and confirmed by FTIR, MS and elemental analysis. Aseries of new polychloro substituted poly(aryl ether ketone)s with inherent viscosities of 0.58-0.65 dL/g have been prepared from TCTPC with aromatic ether monomers by electrophilic Friedel-Crafts acylation in the presence of DMF with anhydrous AlCl3 as a catalyst in 1,2-dichloroethane. Glass-transition temperatures of these polychlorinated polymers ranged from 267 to 28°C by DSC. The degradation temperature at 5% weight loss by TGAin nitrogen for these polymers ranged from 486 to 534°C, and the char yields at 700°C were 54-65%. The polymers having a weight-average molecular weight in the range of 65,900-79,300 are all amorphous and readily soluble in polar solvents such as DMF, DMSO and NMP at room temperature. All the polymers formed transparent, strong, and flexible films, with tensile strengths of 86.1-99.7MPa, Young'smoduli of 2.32-3.35 GPa, and elongations at break of 10-15%.
PROCESS FOR PRODUCING PHTHALIC ACID COMPOUND INCLUDING CHLORINATED AROMATIC RING
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Page/Page column 4, (2012/02/15)
Provided is a process for producing a phthalic acid compound whose aromatic ring has been chlorinated, the process reacting a phthalic acid compound and chlorine in a mixture of chlorosulfonic acid and thionyl chloride in the presence of an iodine compound.